Smash Boxer Dragon

:During the battle that this unit boosted ([Boost]) a unit with the thunderstrike ability, that unit and this unit cannot be chosen by the effects of your opponent's cards. Thunderstrike 3 (Active when your opponent's bind zone has three or more cards):[Put this unit into your soul] At the end of the battle that this unit boosted ([Boost]), if you have a vanguard with "Vanquisher" in its card name, you may pay the cost. If you do, draw a card, and 1.